package com.itheima.utils;

import com.aliyun.oss.*;
import com.aliyun.oss.common.auth.CredentialsProviderFactory;
import com.aliyun.oss.common.auth.EnvironmentVariableCredentialsProvider;
import com.aliyun.oss.common.comm.SignVersion;
import com.aliyun.oss.model.PutObjectRequest;
import com.aliyun.oss.model.PutObjectResult;
import com.itheima.config.MyALiYunOssProperties;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import org.springframework.web.multipart.MultipartFile;

import java.io.FileInputStream;
import java.io.InputStream;
import java.util.UUID;

@Component
public class MyALiYunOssUtil {
        public static void main(String[] args) throws Exception {
            // Endpoint以华东1（杭州）为例，其它Region请按实际情况填写。
            String endpoint = "https://oss-cn-beijing.aliyuncs.com";
            // 从环境变量中获取访问凭证。运行本代码示例之前，请确保已设置环境变量OSS_ACCESS_KEY_ID和OSS_ACCESS_KEY_SECRET。
            EnvironmentVariableCredentialsProvider credentialsProvider = CredentialsProviderFactory.newEnvironmentVariableCredentialsProvider();
            // 填写Bucket名称，例如examplebucket。
            String bucketName = "zl-bj";
            // 填写Object完整路径，完整路径中不能包含Bucket名称，例如exampledir/exampleobject.txt。
            String objectName = "abcdefg.jpg";
            // 填写本地文件的完整路径，例如D:\\localpath\\examplefile.txt。
            // 如果未指定本地路径，则默认从示例程序所属项目对应本地路径中上传文件流。
            String filePath= "D:\\a\\66fa6052-6e44-4cd7-8c29-6887d911713e.jpg";
            // 填写Bucket所在地域。以华东1（杭州）为例，Region填写为cn-hangzhou。
            String region = "cn-beijing";

            // 创建OSSClient实例。
            // 当OSSClient实例不再使用时，调用shutdown方法以释放资源。
            ClientBuilderConfiguration clientBuilderConfiguration = new ClientBuilderConfiguration();
            clientBuilderConfiguration.setSignatureVersion(SignVersion.V4);
            OSS ossClient = OSSClientBuilder.create()
                    .endpoint(endpoint)
                    .credentialsProvider(credentialsProvider)
                    .clientConfiguration(clientBuilderConfiguration)
                    .region(region)
                    .build();

            try {
                InputStream inputStream = new FileInputStream(filePath);
                // 创建PutObjectRequest对象。
                PutObjectRequest putObjectRequest = new PutObjectRequest(bucketName, objectName, inputStream);
                // 创建PutObject请求。
                PutObjectResult result = ossClient.putObject(putObjectRequest);
                System.out.println(result);
            } catch (OSSException oe) {
                System.out.println("Caught an OSSException, which means your request made it to OSS, "
                        + "but was rejected with an error response for some reason.");
                System.out.println("Error Message:" + oe.getErrorMessage());
                System.out.println("Error Code:" + oe.getErrorCode());
                System.out.println("Request ID:" + oe.getRequestId());
                System.out.println("Host ID:" + oe.getHostId());
            } catch (ClientException ce) {
                System.out.println("Caught an ClientException, which means the client encountered "
                        + "a serious internal problem while trying to communicate with OSS, "
                        + "such as not being able to access the network.");
                System.out.println("Error Message:" + ce.getMessage());
            } finally {
                if (ossClient != null) {
                    ossClient.shutdown();
                }
            }
        }

        @Autowired
        private MyALiYunOssProperties properties;
//        String bucketName = "zl-bj";
//        @Value("${aliyun.oss.bucketName}")
//        private String bucketName ;
//        @Value("${aliyun.oss.endPoint}")
//        private String endpoint ;
        public String uploadToOss(MultipartFile multipartFile) {
            OSS ossClient=null;
            try {
            // Endpoint以华东1（杭州）为例，其它Region请按实际情况填写。
//                String endpoint = "https://oss-cn-beijing.aliyuncs.com";
            // 从环境变量中获取访问凭证。运行本代码示例之前，请确保已设置环境变量OSS_ACCESS_KEY_ID和OSS_ACCESS_KEY_SECRET。
                //从环境变量中获取访问凭证，
            EnvironmentVariableCredentialsProvider credentialsProvider
                    = CredentialsProviderFactory.newEnvironmentVariableCredentialsProvider();
            // 填写Bucket名称，例如examplebucket。
            // 填写Object完整路径，完整路径中不能包含Bucket名称，例如exampledir/exampleobject.txt。
                String string = UUID.randomUUID().toString();
                String originalFilename = multipartFile.getOriginalFilename();
                String[] arr = originalFilename.split("\\.");
                String objectName = string+"."+arr[arr.length-1];
            // 填写本地文件的完整路径，例如D:\\localpath\\examplefile.txt。
            // 如果未指定本地路径，则默认从示例程序所属项目对应本地路径中上传文件流。
            // 填写Bucket所在地域。以华东1（杭州）为例，Region填写为cn-hangzhou。
            String region = "cn-beijing";
            // 创建OSSClient实例。
            // 当OSSClient实例不再使用时，调用shutdown方法以释放资源。
            ClientBuilderConfiguration clientBuilderConfiguration = new ClientBuilderConfiguration();
            clientBuilderConfiguration.setSignatureVersion(SignVersion.V4);
            ossClient = OSSClientBuilder.create()
                    .endpoint(properties.getEndPoint())
                    .credentialsProvider(credentialsProvider)
                    .clientConfiguration(clientBuilderConfiguration)
                    .region(region)
                    .build();
            // 创建PutObjectRequest对象。
            PutObjectRequest putObjectRequest = new PutObjectRequest(properties.getBucketName(), objectName, multipartFile.getInputStream());
            // 创建PutObject请求。
            PutObjectResult result = ossClient.putObject(putObjectRequest);
            System.out.println(result);
            //返回
            StringBuilder sb = new StringBuilder("http://");
                String url = sb.append(properties.getBucketName()).append(".").append(properties.getEndPoint().substring(8))
                        .append("/")
                        .append(objectName).toString();
                return url;
            }
              catch (Exception ce) {
                ce.printStackTrace();
                throw new RuntimeException("阿里云上传失败，请检查阿里云相关操作");
            } finally {
                if (ossClient != null) {
                    ossClient.shutdown();
                }
            }
        }
}

